Home / 134,723.62-185,917.47-74,296.78

Finding the Fourth Proportional to 134,723.62, 185,917.47 and 74,296.78

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Solution

The fourth proportional to 134,723.62, 185,917.47 and 74,296.78 is: 102,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,723.62 : 185,917.47 = 74,296.78 : x
  2. Step 2: Convert to fraction form
    134,723.62/185,917.47 = 74,296.78/x
  3. Step 3: Cross multiply
    134,723.62x = 185,917.47 × 74,296.78
  4. Step 4: Simplify right side
    134,723.62x = 13,813,069,366.75
  5. Step 5: Solve for x
    x = 13,813,069,366.75/134,723.62
  6. Step 6: Final answer
    x = 102,528.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.